Wow - you folks are quick AND helpful. One thing I should point out that I didn't clarify - we ONLY use the training collars that make noise - they don't shock, and we ONLY use them when we are there to supervise. We NEVER EVER put them on either dog if we are not there to make sure they are being used properly. I could never imagine someone putting one of these things on and then just leaving. You'd never know what behavior was being corrected! Additionally, we mostly put them on at high-inappropriate-bark times, not during things like playtime, when vocalizing is a natural extension of their playing.

Still can't quite figure out that darn image thing, but you can see our guys at Max and Petey